You can exercise the vest line by doing belly roll, but you can't have too much abdominal fat in the vest line. In addition, belly rolling has a little effect on exercising abdominal muscles, but it has no effect on stovepipe. Rolling the abdomen can neither thin the excess fat in the legs nor thin the muscles and calves. If you have a lot of leg fat, you can jog for 40 minutes to lose leg fat.